/Engine/Source/Runtime/Slate/Public/Framework/Application/SlateApplication.h
A Delegate for querying whether source code access is possible Delegates for when modal windows open or close Delegate for when window action occurs (ClickedNonClientArea, Maximize, Restore, WindowMenu). Return true if the OS layer should stop processing the action. Allow widgets to find out when someone clicked outside them. Currently needed by MenuAnchros.
class FPopupSupport